I myself dealt with this dilemma for a month,finally after a thorough search ,i decided with 4700mq+740m,firstly cause 4700mq is a far far better processor than 4500u and also surprisingly the 740m scores much better than 750m in gpu benchmarks,this is because it is powered by a much powerful 4700mq.only advantage of 750m is that it performs better at heavier graphics load.For verification visit http://www.thinkdigit.com/Laptops-PCs/HP-ENVY-15-j-001TX_17518.html.for a complete detail on processors and graphic cards go to notebokcheck.com

In regards to (casual) gaming possibilities: i7-4500u (+ nVidia GT 740m) VS i7-4700mq (+ nVidia GT 750m)? What would be the best option as these are the typical configurations I can find within my budget.

Swapnil (10:09 AM, January 2, 2014)

Hi I purchased Dell3537 with Radeon 8850M 8GB RAM, i7-4500U. My laptop runs Black Mesa Source, Bioshock 1 ultra smooth. But heats up after long play. BUT I can play these massive games for 2-3 hours at stretch without power connection since power consumption is very low. Though I am a sucker for better CPUs, I feel should have gone for 4700MQ.

Andrey (06:44 PM, November 21, 2013)

4500u is not too bad and not a bottleneck... It revealed the full potential of the radeon 8870m at my laptop, using medium to hight settings for the latest games, everything running very smooth

anonymous (11:14 AM, November 14, 2013)

4500U is a useless CPU which will shatter your dreams of owning an i7. It is even slower than 3rd gen i5. lol! Must be a bottleneck for any laptop!

spectrum (10:25 AM, October 31, 2013)

Does anyone know why the i7 4500U has the same price point as the 4700QM? I really don't get is... it has a much lower power consumption but is only has half the speed of the quad version and not really big differences on battery life... So why do they put the 4500U in the asus N550LF?